JPH02126933U - - Google Patents

Info

Publication number
JPH02126933U
JPH02126933U JP1989037290U JP3729089U JPH02126933U JP H02126933 U JPH02126933 U JP H02126933U JP 1989037290 U JP1989037290 U JP 1989037290U JP 3729089 U JP3729089 U JP 3729089U JP H02126933 U JPH02126933 U JP H02126933U
Authority
JP
Japan
Prior art keywords
pilot
hydraulic
reducing valve
pressure reducing
throttle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1989037290U
Other languages
English (en)
Other versions
JPH0644742Y2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989037290U priority Critical patent/JPH0644742Y2/ja
Publication of JPH02126933U publication Critical patent/JPH02126933U/ja
Application granted granted Critical
Publication of JPH0644742Y2 publication Critical patent/JPH0644742Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Braking Systems And Boosters (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の一実施例を示す油圧回路図
、第2図は従来の走行油圧モータの油圧回路図で
ある。 1……主油圧ポンプ、2……走行油圧モータ、
3……走行用切替弁、4……遠隔操作弁、5……
パーキングブレーキ、6……容積切替弁、7……
作業用リリーフ弁、8……走行用リリーフ弁、9
……切替弁、10……パイロツト油圧ポンプ、1
1……リリーフ弁、12……絞り、13……パイ
ロツト管路、14……減圧弁、15……電磁弁、
16……切替弁、17……パイロツト管路。

Claims (1)

    【実用新案登録請求の範囲】
  1. 可変容積型の走行油圧モータに装備されている
    パーキングブレーキの油圧シリンダと容積切替バ
    ルブとに、絞りを設けたパイロツト油圧系路の絞
    りの下流側のパイロツト圧油を、減圧弁を介して
    供給することにより、パーキングブレーキの制動
    解除と走行油圧モータの容積の切替えとを行う走
    行油圧モータのパイロツト油圧回路において、前
    記減圧弁に至るパイロツト油圧系路の途中に、パ
    イロツト油圧により切替えられて、前記絞りの上
    流側のパイロツト圧油を前記減圧弁に導通させる
    切替弁を設けたことを特徴とする走行油圧モータ
    のパイロツト油圧回路。
JP1989037290U 1989-03-29 1989-03-29 走行油圧モータのパイロット油圧回路 Expired - Lifetime JPH0644742Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989037290U JPH0644742Y2 (ja) 1989-03-29 1989-03-29 走行油圧モータのパイロット油圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989037290U JPH0644742Y2 (ja) 1989-03-29 1989-03-29 走行油圧モータのパイロット油圧回路

Publications (2)

Publication Number Publication Date
JPH02126933U true JPH02126933U (ja) 1990-10-19
JPH0644742Y2 JPH0644742Y2 (ja) 1994-11-16

Family

ID=31544264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989037290U Expired - Lifetime JPH0644742Y2 (ja) 1989-03-29 1989-03-29 走行油圧モータのパイロット油圧回路

Country Status (1)

Country Link
JP (1) JPH0644742Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996020355A1 (en) * 1994-12-27 1996-07-04 Komatsu Ltd. Brake device for a hydraulic motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996020355A1 (en) * 1994-12-27 1996-07-04 Komatsu Ltd. Brake device for a hydraulic motor
US6006872A (en) * 1994-12-27 1999-12-28 Komatsu Ltd. Braking apparatus for a hydraulic motor

Also Published As

Publication number Publication date
JPH0644742Y2 (ja) 1994-11-16

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